Pumpkin Waffles with Maple Walnut Apples

Name: Pumpkin Waffles with Maple Walnut Apples
Ingredients: 1 cup cake flour; 1/4 cup wheat germ; 1/3 cup granulated sugar; 1 tablespoon baking powder; 1 teaspoon pumpkin pie spice; 1/2 teaspoon freshly grated nutmeg; 1/2 teaspoon fine salt; 3/4 cup milk; 1/2 cup pumpkin puree; 1/4 cup melted butter; 1/4 cup melted shortening (transfat-free); 1 large egg; 1 large egg white; 2 to 3 tablespoons unsalted butter; 2 crisp apples, peeled and sliced thinly; 1/4 cup pure maple syrup; 1/2 cup toasted walnuts (see Cook's Note)